From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from smtp1.osuosl.org (smtp1.osuosl.org [140.211.166.138]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 4D835C4332F for ; Wed, 16 Nov 2022 06:05:09 +0000 (UTC) Received: from localhost (localhost [127.0.0.1]) by smtp1.osuosl.org (Postfix) with ESMTP id E1C10817C0; Wed, 16 Nov 2022 06:05:08 +0000 (UTC) DKIM-Filter: OpenDKIM Filter v2.11.0 smtp1.osuosl.org E1C10817C0 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=osuosl.org; s=default; t=1668578708; bh=4r/gvmdZxg+uil9PptDJ2KU8RA/AqdAXqvln8O0/fZ4=; h=Date:From:To:References:In-Reply-To:Subject:List-Id: List-Unsubscribe:List-Archive:List-Post:List-Help:List-Subscribe: Cc:From; b=tB7bQVD6B7AdNrGqpWzhT04nDiSDwt0UX7QWg5J4rgt/nS8D9ZO15O8v+80znjAOj wQnaAieAbhoqxQw85dec3iH1zYISpzUsFTzbNBLlwmOZwvgV6nE7ngvVvl9MtyCroC 5mAESknxmByMlJafcS/TriIUcQeXEaCO3vdvgxrR9MESeg73TqYiiRhltZTNu9Pi8z CLNattTtFXw+Z5D5LQ54usmBcC5lRiRJXXThD84jP9bAhjw0b9HnJ7IYFbjX5cTPH+ MtzdBpv1GRRbSh9pt4omx8vFE/g5vKXVSSyxdtyvGplvEzCnct6QLwzspe7m+gHejE YeowgAb/jAVBg== X-Virus-Scanned: amavisd-new at osuosl.org Received: from smtp1.osuosl.org ([127.0.0.1]) by localhost (smtp1.osuosl.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id YqjUuI5odxW9; Wed, 16 Nov 2022 06:05:07 +0000 (UTC) Received: from ash.osuosl.org (ash.osuosl.org [140.211.166.34]) by smtp1.osuosl.org (Postfix) with ESMTP id 8DEFF818B5; Wed, 16 Nov 2022 06:05:07 +0000 (UTC) DKIM-Filter: OpenDKIM Filter v2.11.0 smtp1.osuosl.org 8DEFF818B5 Received: from smtp2.osuosl.org (smtp2.osuosl.org [140.211.166.133]) by ash.osuosl.org (Postfix) with ESMTP id C10611BF2AA for ; Wed, 16 Nov 2022 06:05:05 +0000 (UTC) Received: from localhost (localhost [127.0.0.1]) by smtp2.osuosl.org (Postfix) with ESMTP id 9A8964012B for ; Wed, 16 Nov 2022 06:05:05 +0000 (UTC) DKIM-Filter: OpenDKIM Filter v2.11.0 smtp2.osuosl.org 9A8964012B X-Virus-Scanned: amavisd-new at osuosl.org Received: from smtp2.osuosl.org ([127.0.0.1]) by localhost (smtp2.osuosl.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id x_D3fOpyabrK for ; Wed, 16 Nov 2022 06:05:03 +0000 (UTC) X-Greylist: domain auto-whitelisted by SQLgrey-1.8.0 DKIM-Filter: OpenDKIM Filter v2.11.0 smtp2.osuosl.org DE2E1400D9 Received: from dfw.source.kernel.org (dfw.source.kernel.org [IPv6:2604:1380:4641:c500::1]) by smtp2.osuosl.org (Postfix) with ESMTPS id DE2E1400D9 for ; Wed, 16 Nov 2022 06:05:02 +0000 (UTC) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id BD2C961A1D; Wed, 16 Nov 2022 06:05:01 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 58F79C433C1; Wed, 16 Nov 2022 06:05:00 +0000 (UTC) Date: Wed, 16 Nov 2022 08:04:56 +0200 From: Leon Romanovsky To: "Samudrala, Sridhar" Message-ID: References: MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: X-Mailman-Original-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1668578701; bh=dUmzkPluZtQiyq2oNa5xsUNc4WZFXNBLWs3LEsw5NT4=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=u+BqUzFBS6c1zo+GXWkPLS0w97BkkEIylWYnVBleWgxks+rgjBWl/34RF9tPmYQqi NQsW/uY8mF9m8N39Wxj6gmLbHw8MFPC+/GYx/Ix/7Vmf5Ir+I13rSLWTUdlqwT4mJp tnTSnaR4b5XWU2gG0MiUJ0+fTb2sJ6DT9PSJYpLj7hR6DFFJSXMyKgvLwDkq3/s+wF E+Kr8CD3/Nn+r7cRoLfW8g8jpv7nHzDQdHrkCHiKN1/uf7p0BVzNw4B0YBPz6kTiDC THzdZhV+30bmnICIpRswIhFK8vrlJEFuSzvCK/3uwlYdJmIVia9fk0vjQIKXZf3QOh oHQknlrm1ZGpw== X-Mailman-Original-Authentication-Results: smtp2.osuosl.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20201202 header.b=u+BqUzFB Subject: Re: [Intel-wired-lan] [PATCH net-next 00/13] resource management using devlink reload X-BeenThere: intel-wired-lan@osuosl.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Intel Wired Ethernet Linux Kernel Driver Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: netdev@vger.kernel.org, jiri@nvidia.com, leszek.kaliszczuk@intel.com, przemyslaw.kitszel@intel.com, edumazet@google.com, mustafa.ismail@intel.com, intel-wired-lan@lists.osuosl.org, kuba@kernel.org, pabeni@redhat.com, shiraz.saleem@intel.com, davem@davemloft.net Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: intel-wired-lan-bounces@osuosl.org Sender: "Intel-wired-lan" On Tue, Nov 15, 2022 at 07:59:06PM -0600, Samudrala, Sridhar wrote: > On 11/15/2022 11:57 AM, Leon Romanovsky wrote: <...> > > > In case of ice driver lspci -vs shows: > > > Capabilities: [70] MSI-X: Enable+ Count=1024 Masked > > > > > > so all vectors that hw supports (PFs, VFs, misc, etc). Because of that > > > total number of MSI-X in the devlink example from cover letter is 1024. > > > > > > I see that mellanox shows: > > > Capabilities: [9c] MSI-X: Enable+ Count=64 Masked > > > > > > I assume that 64 is in this case MSI-X ony for this one PF (it make > > > sense). > > Yes and PF MSI-X count can be changed through FW configuration tool, as > > we need to write new value when the driver is unbound and we need it to > > be persistent. Users are expecting to see "stable" number any time they > > reboot the server. It is not the case for VFs, as they are explicitly > > created after reboots and start "fresh" after every boot. > > > > So we set large enough but not too large value as a default for PFs. > > If you find sane model of how to change it through kernel, you can count > > on our support. > > I guess one main difference is that in case of ice, PF driver manager resources > for all its associated functions, not the FW. So the MSI-X count reported for PF > shows the total vectors(PF netdev, VFs, rdma, SFs). VFs talk to PF over a mailbox > to get their MSI-X vector information. What is the output of lspci for ice VF when the driver is not bound? Thanks > > > _______________________________________________ Intel-wired-lan mailing list Intel-wired-lan@osuosl.org https://lists.osuosl.org/mailman/listinfo/intel-wired-lan